Quartz Stud Earrings, Sterling Silver, NEW, Handmade, Artisan, Minimal. Pretty faceted white quartz in rectangles, prong set in sterling silver. Post earrings with butterfly clasps on the posts. 7 mm x 5 mm. Lightweight. Small. Sparkly. These are wonderful to wear with nearly everything! Handmade in my Florida studio. Made in the USA.